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Electric power storage system

  • US 9,041,404 B2
  • Filed: 03/04/2010
  • Issued: 05/26/2015
  • Est. Priority Date: 03/04/2010
  • Status: Active Grant
First Claim
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1. An electric power storage system, comprising:

  • a battery pack configured by connecting in seriesat least one first rechargeable storage battery; and

    at least one second rechargeable storage battery, wherein a capacity of the first storage battery becomes lower than a capacity of the second storage battery during a short-circuit, and a polarity of the first storage battery is inverted;

    a detector that detects a voltage of the first storage battery; and

    a fault signal generator that generates an output fault signal when the voltage detected by the detector inverses.

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